Nathan S. Birnbaum, D.D.S., C.A.G.S. | Heidi B. Aaronson, D.M.D.

Meet Our Staff

We know that our office is only as effective and as welcoming as the people who work in it, which is why we take pride in our friendly and well-trained team members! As a team, we are especially interested in making all our patients feel right at home! We put your needs first to achieve efficient and comprehensive treatment in a supportive and nurturing environment. We promise to speak candidly with you about possible treatments as well as any risks and associated costs of treatment, and how treatment can address your individual needs as a patient.

To experience the difference that only a well-trained, professional and courteous team can deliver, schedule your appointment with our office today!


Robin – Office Manager

RobinRobin is our extremely knowledgeable and expert office manager. In that role, she assures that our entire dental office operates in an effective and professional manner. Robin is an integral part of NGDC's success and is always available to discuss any questions you may have. Robin is a native of Nashua, New Hampshire and has served as our office manager for over 15 years.

Robin can be reached at



Karen – Hygienist

KarenKaren is our highly skilled registered dental hygienist. She is a graduate of the University of Vermont class of 2002. Karen joined our practice in March of 2007. She loves to help patients with their individual dental needs through oral hygiene instruction, thorough yet gentle cleanings, fluoride treatments, oral cancer screenings and safe and accurate digital radiographs. Karen has a most pleasant personality and is both competent and knowledgeable. Please feel free to ask her any questions related to dentistry or your general oral health. Karen and her husband Brad have two children - Jackson, who was born in 2013, and William, who was born in 2016.

Karen can be reached at

Julie– Hygienist

EtsieJulie joined New Generation's team in 2015 as a part-time hygienist while Karen was on maternity leave, but as her time with us came to an end, we realized how much our patients would miss her and thankfully she agreed to join our team on a permanent basis! Julie is now our permanent hygnienist on Tuesdays, and patients enjoy her bubbly personality, gentle touch, and exceptional technical skills!

Julie can be reached at


Paula – Dental Assistant

PaulaPaula is the hard-working and friendly dental assistant who works with Dr. Birnbaum to ensure that your visit for restorative and aesthetic dental treatment runs as smoothly and efficiently as possible. Her kind demeanor and informed answers to your questions regarding the nature of your treatment will educate you and put you at ease, and her flawless assisting skills will be readily evident during your appointment. Paula was personally trained by Dr. Birnbaum and has been assisting him for over 25 years.

Paula can be reached at

Sherry - Dental Assistant

sherrySherry joined NGDC in April 2015 after successfully completing training at New England Dental Assistant School and graduating at the top of her class. Sherry brings with her a wide range of experience, from a medical office to the police force, where she worked as a dispatcher and a police officer. She is also a Reiki master, healer, and teacher, with a background in sound therapy. Sherry is a wonderful assistant and she looks forward to getting to know every patient and making sure everyone's experience in the dental chair is as comfortable and relaxing as possible!